Snapper P216012TV, FRP216012TV, EFRP216012TV, EFRP216512TV, EFRP216516TV User Manual

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Safety Instructions & Operator’s Manual for
21” STEEL DECK
WALK MOWERS
SERIES 12 & 16
MODELS
PROPELLED MODELS P216012TV FRP216012TV EFRP216012TV EFRP216512TV EFRP216516TV
MODEL NUMBER EXPLANATION
R P 21 50 12 T V
MODEL DESIGNATION ENGINE OPTIONS SELF-PROPELLED ENGINE TYPE CUTTING WIDTH SERIES DESIGNATION ENGINE HORSE POWER
R – Recycling Model F – Flange Type Deck 12 – Series Designation P – Self Propelled Model N – California Model T – Tecumseh Engine E – European Model 21 – 21” Cutting Width V – Over Head Valve Engine
60 – 6.0 HP (Engine Horse Power) 65 – 6.5 HP (Engine Horse Power)
Thank you for buying a SNAPPER Product! Before operating your Walk Behind, read this manual carefully and pay particular attention to the “IMPORTANT SAFETY INSTRUCTIONS” on Pages 2 & 3. Remember that all power equipment can be dangerous if used improperly. Also keep in mind that SAFETY requires careful use in accordance with the operating instructions and common sense.
COPYRIGHT © 1999 SNAPPER INC. ALL RIGHTS RESERVED
MANUAL No. 3-5842 (REV. 2, 8/10/99)
Page 2
IMPORTANT SAFETY INSTRUCTIONS
WARNING: This powerf ul cutting machine is capab le of amputating hand s and feet and can throw objects that can cause injury and damage! Failure to comply with the follow ing SAFETY instru ctions could resu lt in serious injury or death to the operator or other persons. The owner of the machine must understand these instructions and must allow only persons who understand these instructions to operate machine. Each person operating the machine must be of sound mind and body and must not be under the influence of any substance, which might impair vision, dexterity or judgment. If you have any questions pertaining to your machine which your dealer cannot answer to your satisfaction, call or write the Customer Service Department at SNAPPER, McDonough, Georgia 30253. Phone: (1-800-935-2967).
PROTECTION FOR CHILDREN
Tragic accidents can occur if the operator is not alert to the presence of children. Ch ildren are often attracted to the machine and the mowing activity. Never assume that children will remain where you last saw them.
1. KEEP children out of the mowing area and under the watchful care of a responsible adult.
2. DO NOT allow children in yard when mach ine is operated and turn machine OFF if anyone enters the area.
3. DO NOT allow pre-teenage children to operate machine.
4. ALLOW only responsible adults & teenagers with mature judgment under close adult supervision to operate machine.
5. DO NOT pull mower backwards unless absolutely necessary. LOOK BEHIND and dow n for small children before and when backing.
6. USE EXTRA CARE when approaching blind corners, shrubs, trees, or other object s that may obscure vision.
SLOPE OPERATION
1. Slopes are a major facto r related to slip and fall accidents, which can result in severe injury. All slopes require extra cau tion. If you feel uneasy on a slope, do not mow it.
2. Mow across slopes, never up-and-down. Exercise extreme CAUTION when changing directions on slopes. DO NOT mow steep slopes or other areas where stability or traction is in doubt.
PREPARATION
1. Read, understand, and follow instructions and warnings in this manual and on the mower and with attachments. Know the controls and the proper use of the mower before starting.
2. Only mature, responsible persons shall operate the machine and only after proper instruction.
3. Data in dicates that o perators age 60 and abov e, are involved in a large percentage of mower­related injuries. These operators should evaluate their ability to operate the mower safely enough to protect themselves and others from serious injury.
PREPARATION
4. Handle fuel wit h ext ra care. Fuels are flammabl e and vapors are explosive. Use only an approved fuel container. Never remove fuel cap or add fuel with engine running. Add fuel outdoors only with engine stopped and cool. Clean spilled fuel and oil from machine. DO NOT smoke. DO NOT run engine indoors.
5. Check the area to be mowed and remove all objects such as toys, wire, rocks, limbs and other objects that could cause injury if thrown by blade or interfere with mo win g. Also note the location of holes, stumps, and other possible hazards.
6. Keep people and pets a safe distance from machine.
7. Check shields, deflectors, switches, blade controls and other safety dev ices frequently for proper operation and location.
8. Make sure all safety decals are clearly legible. Replace if damaged.
9. Protect yourself when mow ing and wear safety glasses, long pants and substantial footwear. DO NOT mow barefooted or with sandals.
10. Know how to STOP blade and engine quickly in preparation for emergencies.
11. Use extra care when loading or unloading the machine into a trailer or truck.
OPERATION
1. DO NOT put hands or feet near or under rotating parts. Keep clear of discharge area wh ile engine is running.
2. STOP engine when crossing gravel drives, walks, or roads, and under any conditions where thrown objects might be a hazard.
3. Mow only in daylight or good artificial light.
4. DO NOT operate mower while under the influence of alcohol or drugs.
5. After striking a foreign object or if mower vibrates abnormally, STOP the engine, disconnect and secu re spark plug wire. Inspect the mower for any damage and repair the damage.
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IMPORTANT SAFETY INSTRUCTIONS
OPERATION
6. W atch for holes, ruts or bumps. Tall grass can hide obstacles.
7. DO NOT mow near drop offs, ditches or embankments. Operator could lose footing or balance.
8. DO NOT mow on wet grass Always be sure of your footing; keep a firm hold on the handle and walk; never run. Slipping could cause injury. STOP blade and engine w henever you leav e the operating position behind the handle for any reason, including clearing grass, emptying grass bag and making wheel height adjustments, repairs, or inspections.
9. Before cleaning, repairing or inspecting make certain blade and all moving parts have STOPPED. Disconnect and secure spark plug wire away from plug to prevent accidental starting.
10. STOP engine and wait until the blade comes to complete STOP before removing grass bag and/or clearing grass.
MAINTENANCE AND STORAGE
1. Never store machine or fuel container inside where fumes may reach an open flame, spark or pilot light such as in a water heater, furnace, clothes dryer or other gas appliance. Allow engine to cool before storing machine in an enclosure. Store fuel container out of reach of children in a well ventilated, unoccupied building.
2. Keep mow er and engine free of grass, leaves or excess grease to reduce fire hazard and engine overheating.
3. When draining fuel tank, drain fuel into an approved container outdoors and away from open flame.
MAINTENANCE AND STORAGE
4. Keep all bolts, especially blade bolts, nuts and screws properly tight. Check that all cott er pins are in proper position.
5. Service engine and make adjustments only when engine is stopped. Removed spark plug wire from spark p lu g an d secu re w ire away from spark plug to prevent accidental starting.
6. DO NOT change engine governor speed settings or overspeed engine.
7. Check grass bag assembly frequently for wear or deterioration to avoid thrown objects and exposure to moving parts. Replace with new bag if loose seams or tears are ev ident. Rep lace slider or bag adapter if broken or cracked.
8. Mower blades are sharp and can cut. Wrap the blades or wear heavy leather gloves and use CAUTION when handling them.
9. NEVER test for spark by grounding spark plug next to spark plug hole; spark plug could ignite gas exiting engine.
10. Have machine serviced by an authorized SNAPPER dealer at least once a year and have the dealer install any new safety devices.
11. Use only genuine SNAPPER replacement parts to assure that original standards are maintained.
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TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS.............................................2 & 3
TABLE OF CONTENTS............................................................................4
SECTION 1 - FAMILIARIZATION..............................................................5
SECTION 2 - OPERATING INSTRUCTIONS.........................................6-8
Pre-start Checklist ...............................................................................................6
Starting & Stopping Engine & Blades............................................................. 6-7
Starting & Stopping Wheel Drive ....................................................................... 7
Adjusting Handle Height..................................................................................... 7
Adjusting Cutting Height.................................................................................... .7
Recycling Operation............................................................................................ 8
Baffle Adjustment................................................................................................ 8
Grass Catcher Installation .................................................................................. 8
SECTION 3 - MAINTENANCE INSTRUCTIONS..................................9-10
Changing Engine Oil............................................................................................ 9
Checking Transmission Grease....................................................................9-10
Checking Mower Blade ..................................................................................... 10
Checking Engine Drive Belt.............................................................................. 10
Checking Transmission Poly-V Belt ................................................................10
Annually (End of Each Season)........................................................................ 10
Engine.............................................................................................................. 10
Air Filter........................................................................................................... 10
Engine Oil........................................................................................................ 10
Storage Procedure............................................................................................. 10
SECTION 4 - ADJUSTMENTS AND REPAIR....................................11-16
Mower Blade Repair/Replacement (Standard & Ninja)................................... 11
Wheel Drive Control Adjustment...................................................................... 12
Driven and Drive Disc Service.......................................................................... 12
Cleaning Drive Disc and Driven Disc............................................................ 13
Drive Spring Repair/Replacement................................................................. 13
Driven Disc Adjustment................................................................................. 13
Driven Disc Replacement............................................................................... 14
Driven Disc Bearing Replacement................................................................ 15
Hex Shaft Bearing Replacement ...................................................................15
Belt Service ........................................................................................................ 15
Engine Drive Belt Replacement ...............................................................15-16
Transmission Poly-V Belt Replacement....................................................... 16
TROUBLESHOOTING ............................................................................ 17
SERVICE SCHEDULE ............................................................................18
WARRANTY............................................................................................ 19
PRIMARY MAINTENANCE................................................................20-23
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Section 1 - FAMILIARIZATION
CONTROL
SLOW
MOTION
FILLER CAP
WHEEL DRIVE
ENGINE SPEED CONTROL
UPPER HANDLE
KNOB
MID HANDLE
GRASS BAG
KNOB
LOWER HANDLE
REAR HEIGHT ADJUSTMENT LATCH
BLADE CONTROL
GROUND SPEED CONTROL
GROUND SPEED CONTROL
FAST
BLADE CONTROL ­RELEASE TO STOP BLADE & ENGINE
ROPE START HANDLE
GRASS BAG CONNECTOR
ENGINE SPEED CONTROL
RECYCLING MODEL SHOWN (ROPE START MOUNTED ON RIGHT SIDE OF HANDLE)
OIL FILL CAP & DIPSTICK
FUEL
MOWER
ENGINE SPEED DECAL
FAST
SLOW
WHEEL DRIVE CONTROL - RELEASE TO STOP FORWARD
PRIMER BULB
FRONT HEIGHT ADJUSTMENT LATCH
ENGINE AIR BREATHER COVER
RECYCLING DECK COVER
RECYCLING DECK DETAIL
1.1 INTRODUCTION
This manual has been prepar ed for the operators of the SNAPPER WALK BEHIND MOWERS. Its purpose, aside from recommending operating and routine service requirements, is to promote safety through the use of accepted operating practices. Read, Understand and Follow the “IMPORTANT SAFETY INSTRUCTIONS” on Pages 2 & 3 of this manual and all safety messages on the mower and attachments before operating the mower.
BAG ADAPTER
FIGURE 1.1
1.2 NOMENCLATURE
CATCHER MODEL SHOWN (ROPE START MOUNTED ON LEFT SIDE OF HANDLE)
SIDE DISCHARGE DETAIL
The nomenclature drawing above, Figure 1.1, shows the essential parts of the SNAPPER WALK BEHIND MOWERS. It is recommended that all operators of the mower become thoroughly familiar with the controls, parts and operation of the mower before operating. Specific details involving the engine are found in the separate engine owner’s manual. Study these manuals befor e operating and keep both handy for future reference.
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Section 2 - OPERATING INSTRUCTIONS
POSITION)
2.1 PRE-START CHECK LIST
Make the following checks and perform the service required before each start-up.
2.1.1. Check guards, deflectors, grass bag, adapter and covers to mak e sure all are in place and securely tightened.
2.1.2. Check blade c ontr ol and wheel drive contr ol to insure they work freely. See Figure 2.1.
RECYCLING MODEL SHOWN (ROPE START MOUNTED ON RIGHT SIDE OF HANDLE)
2.1.6. Clean exterior surfaces of cutting deck and
engine of any accumulation of spilled fuel, dirt, grass , oil, etc. Keep engine air intake screen and cooling fins clear at all times.
2.2 STARTING & OPERATION
2.2.1. ENGINE & BLADE
1. Move engine speed control to the “Fast” (Rabbit)
position. See Figure 2.3.
NOTE: Stop the engine (and blade) by releasing the
blade control.
BLADE CONTROL
CATCHER MODEL SHOWN (ROPE START MOUNTED ON LEFT SIDE OF HANDLE)
BLADE CONTROL
WHEEL DRIVE CONTROL
FIGURE 2.1
2.1.3. Check cutting height. Adjust to desired height.
2.1.4. Check engine oil and add oil as needed to bring
level up to the full mark. Refer to Engine Owner’s Manual for oil specifications. See Figure 2.2.
FIGURE 2.2
2.1.5. Add fuel to tank after pushing the mower
outside where fumes can saf ely dissipate. Make sure cap is tightened after refueling. Refer to Engine Owners Manual for specifications.
WHEEL DRIVE CONTROL
ENGINE SPEED CONTROL (SHOWN IN CHOKE
FIGURE 2.3
2. Push primer button three times to start a cold
engine. NOTE: Do not use primer button to start warm engine.
3. Pull blade control against handle.
4. Pull rope start handle to crank engine.
5. After engine starts, allow a brief warm-up until
engine runs smooth.
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Section 2 - OPERATING INSTRUCTIONS
CONTROL
SIX
HEIGHT
1
HEIGHT
6
1
5 6
2.2.2. PROPELLING MOWER (Self Propelled Models Only)
1. Move ground speed control to the desired speed
position. See Figure 2.4.
2. Move wheel drive control against handle to engage wheel drive and propel mower forward. Forward speed can be adj usted while the mower is moving by changing position of the ground speed control. See Figure 2.4.
MOVE GROUND SPEED CONTROL TO DESIRED POSITION
(FAST) SIXTH SPEED POSITION
ONE
BLADE
RECYCLING MODEL SHOWN (ROPE START MOUNTED ON RIGHT SIDE OF HANDLE)
(SLOW) ONE SPEED POSITION
WHEEL DRIVE CONTROL
FIGURE 2.4
2.3 STOPPING
Stop engine and blade by releasing the blade control. Stop forward motion of mower by releasing the wheel drive control.
2.4 HANDLE HEIGHT ADJUSTMENT
The height of the mo wer handle can be adjusted as follows:
1. Loosen the lower nuts on each lower handle as shown in Figure 2.5.
HIGHER
LOWER HANDLE
2. Move upper mower handle up or down until the
desired position is achieved.
3. Tighten the lower nuts on each lower handle to maintain desired position.
Stop engine and mow er blade by releasing the blade control before adjusting cutting height and handles.
2.5 CUTTING HEIGHT ADJUSTMENT
1. Pull the height adjusting latch outward and move
to desired cutting height. See Figure 2.6.
2. Set all wheels at the same cutting height. The highest cutting position is Notch 6. The lowest cutting position is Notch 1. See Figure 2.7.
LATCH POSITIONS
WARNING
LOWEST CUTTING
LATCH
2
3
4
HIGHEST CUTTING
FIGURE 2.6
LOWER
CUTTING HEIGHT SETTINGS
LOOSEN LOWER NUTS ON EACH LOWER HANDLE
FIGURE 2.7
FIGURE 2.5
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Section 2 - OPERATING INSTRUCTIONS
BAFFLE
ADAPTER
CONNECTOR
WARNING
Before attempting any adjustments to the cutting height or front baffle, STOP the engine, remove the spark plug wire from th e spark plug and secure wire away from plug. DO NOT make any adjustmen ts with engine or blade running. Be extremely careful when performing adjustments around engine. Engine is extremely hot and can cause severe burns. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury.
2.6 RECYCLING OPERATION NOTE: For best recycling results, cut up to a m axim um of
1/3 of grass blade length and recycle ONLY when grass is dry.
1. Set all wheels in the highest cutting position (Notch 6).
2. Move engine speed control to “FAST” (Rabbit) position.
3. Move ground speed control to slowest speed setting.
4. Proceed mowing slowly. If grass is very dense, lower each rear wheel latch one notch lower than the front wheel latches to improve recycling performance.
2.7 ADJUSTING FRONT DECK BAFFLE (Models with an “F” prefix in model number) (Example: F
R215012)
The front of the cutting deck on these m odels has been modified with an open area. This allows the blade to have more direc t c ontact with the grass and allows more air flow into deck chamber. The adjustable baffle should be secured in the lowest position when using a grass bag. T he baffle should be secured in the highest position when mulching grass.
NOTE: Under certain conditions, when mulching, some grass may blow out from under front of baffle. This is normal but, the amount of grass blowing out can be reduced. Lower baffle slightly to reduce the amount of grass blow out.
1. Stop engine. See WARNING above.
2. Loosen wing nuts that secure front deck baffle.
See Figure 2.8.
3. Lower the adjustable baffle to the lowest position when using a grass bag. Raise the baffle to its highest position when mulching grass. Take care to keep the baffle’s lower edge par allel to the bottom of the deck. See Figure 2.8.
4. Retighten wing nuts securely.
HOLE DESIGNATES TOP OF BAFFLE (ALWAYS KEEP HOLE IN UP POSITION)
FRONT DECK BAFFLE (SHOWN IN HIGHEST POSITION)
FRONT CUTOUT OF DECK
2.8 INSTALLATION of GRASS CATCHER
Install grass catcher by sliding connector over flange of adapter. See Figure 2.9. Attach grass bag hooks over middle handle cross bar. See Figure 2.10.
POSITION BAG BETWEEN HANDLES
BAG
ATTACH BAG HOOKS OVER MIDDLE HANDLE
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WING NUT
FIGURE 2.8
FIGURE 2.9
FIGURE 2.10
FRONT DECK
WING NUTS
MOVE BAFFLE UP FOR MULCHING GRASS
MOVE BAFFLE DOWN FOR GRASS BAGGING
SLIDE CONNECTOR DOWN OVER BAG ADAPTER FLANGE
MIDDLE HANDLE CROSS BAR
MIDDLE HANDLE CROSS BAR
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Section 3 - MAINTENANCE
FILL PLUG
3.1 INTRODUCTION
To retain the quality of the mower, use genuine SNAPPER replacement parts only. Contact a local SNAPPER dealer for parts and service assistance. For the correct part or information for a particular mower, always mention model and serial number.
3.2 SERVICE - AFTER FIRST 5 HOURS
3.2.1. CHANGE ENGINE OIL
WARNING
Before attempting any adjustments o r repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire aw ay from plug. Engine oil is extremely hot and can cause severe burns. Allow engine oil to cool before draining to prevent injury.
1. Refer to Engine Manual for proper oil
specifications and procedures..
2. For simplest/cleanest oil change, loosen lower handle wing nuts and stand mower up on lower handle as shown in Figure 3.1. Drain oil through dipstick tube into a container.
FIGURE 3.1
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION
1. Remove transmission fill plug. Roll machine
forward or backward while looking down into plug hole.
2. If liquid (the small gear below the plug hole), add an amount, to cover gear, of Snapper “ 00” grease. See Figure 3.2.
NOTE: Snapper “00” Grease (Part No. 2-9443) is available at your SNAPPER dealer.
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grease IS NOT visible on the input gear
FIGURE 3.2
(Continued on Next Page)
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Section 3 - MAINTENANCE
3.2.2. CHECK GREASE LEVEL IN TRANSMISSION (Continued from previous page)
NOTE: Do not spill grease or oil on surfac e of drive disc.
See Figure 3.3.
3. Reinstall transmission plug.
4. Thereafter, check grease level after each 25
hours of operation.
KEEP DRIVE DISC CLEAN !
RECOMMENDED BLADE RETAINING CAP SCREW TORQUE VALUE SHOULD BE 30 TO
FIGURE 3.3
WARNING
Before attempting any adjustments or repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury.
3.2.3 CHECK MOWER BLADE
1. Disconnect spark plug wire and secure end away
from plug.
2. Tilt mower up on its rear wheels for access to the blade cap screw. Do not tilt mower with spark plug or carburetor down. See Figure 3.4.
3. Check torque of blade retaining cap screw. Recommended torque should be 30 to 40 ft. lbs. See Figure 3.4.
4. Check blade for sharpness, wear and damage. See Section on Blade Wear Limits.
3.2.4 CHECK ENGINE DRIVE BELT
1. Visually check engine drive belt for cracking,
fr aying , severed or belt s trands ex pos ed. Replace belt before operating mower.
3.2.5 CHECK TRANSMISSION POLY-V BELT
1. Visually check poly-v belt for cracking, fraying,
severed or belt strands exposed. Replac e belt before operating mower.
FIGURE 3.4
3.3 ANNUALLY (END OF EACH SEASON)
Perform all m aintenance as described in the maintenance schedule.
3.3.1. Engine
Service engine according to engine owner’s manual.
3.3.2. Air Filter Refer to engine owner’s manual for service instructions.
3.3.3. Engine Oil Refer to engine owner’s manual for service instructions.
3.4 STORAGE PROCEDURE
Refer to the Engine Owner’s Manual for directions regarding engine storage preparations. Prepare the mower for “end of season” storage as follows:
1. Drain fuel from fuel tank and let engine run until all fuel is out of the carburetor.
2. Disconnect and remove the spark plug wire away from spark plug before any other preparations are made!
3. Tape all openings closed to prevent spraying
water into exhaust or air intakes during washing.
4. Tilt m ower up on its rear wheels and thoroughly clean the underside of the deck . Do not tilt mower with spark plug or carburetor down. Scrape away any accumulation of grass with a putty knife and or wire brush.
5. Lubricate all exposed metal with a light coating of oil to prevent corrosion.
6. On these models, loosen wing nuts on ground speed control rod before folding handles.
7. Loos en handle knobs. Car efully fold the handles forward, “flexing” the c ontro l cables to pr event cable damage.
8. Store the mower in a shed or other dry area, protected from weather.
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Section 4 - REPAIR & ADJUSTMENTS
BLADE.
FLANGES
CUTTING EDGE
BLADE ASSEMBLY
WARNING
Before attempting any adjustments o r repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug. Wear heavy leather gloves when handling or working around cutting blades. Blades are extremely sharp and can cause severe injury.
4.1 MOWER BLADE REPAIR/REPLACEMENT
4.1.1. STANDARD BLADE WEAR LIMIT
1. Inspect blade frequently for signs of excessive wear
or damage. See Figure 4.1.
NEW BLADE
WEAR LIMIT (NOTCH STARTS)
DANGEROUS CONDITION ! DO NOT USE ON MOWER ! REPLACE WITH NEW
WARNING
Never use a cutting blade that shows signs of excessive wear or damage. Refer to Section on MOWER BLADE REPAIR/REPLACEMENT for proper blade inspection and service procedures.
4.1.2. BLADE SHARPENING
1. Dis connect spark plug wire and secur e end away
from plug.
2. Tilt mower up on its rear wheels. Do not tilt mower with spark plug or carburetor down.
3. Remove blade. See Figure 4.2.
BLADE HUB
FLANGE
BLADE
MAKE SURE THAT BLADE HUB IS SEATED BETWEEN
FIGURE 4.1
4.1.1A. NINJA BLADE WEAR LIMIT 1A. Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.1A.
NEW BLADE
DANGEROUS ! DO NOT USE A BLADE IN THIS CONDITION !
WEAR LIMIT. CRACKS OR NOTCHES BEGIN TO APPEAR ON TIP
FIGURE 4.1A
2. Replace the blade if it is badly chipped, bent,
noticeably out of balance or has cracks or notch in either tip. See Figure 4.1 & 4.1A. Replace with new blade.
CONE WASHER (Concave Side Up)
CAPSCREW
FIGURE 4.2
4. Sharpen blade on a grinding wheel at an angle of
22 to 28 degrees. DO NOT sharpen blade beyond original cutting edge. See Figure 4.3.
DO NOT SHARPEN BEYOND ORIGINAL
ORIGINAL CUTTING EDGE
22-28º
BLADE TIP
END VIEW OF
FIGURE 4.3
5. Check blade for balance. If necessary, correct
balance by grinding heavy end of blade.
6. Reinstall blade. Refer to Figure 4.1. Check torque of blade retaining cap screw. Recom mended torque should be 30 to 40 ft. lbs.
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Section 4 - REPAIR & ADJUSTMENTS
CLUTCH CABLE
VINYL SPRING COVER
CLEARANCE
SPRING
EYE
CLUTCH CABLE EYE
4”
BELT
WARNING
Before attempting any adjustments o r repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug.
NOTE: The following sections 4.2 through
4.4 are for self-propelled models only.
4.2 WHEEL DRIVE CONTROL ADJUSTMENT
1. The wheel drive control is properly adjusted when
there is 1/16” to 1/8” clearance between the inside of the spring hook and the inside of the clutch cable eye with the wheel drive control released. See Figure 4.4.
1/16” TO 1/8”
UPPER
LOWER SPRING
CABLE
CLUTCH CABLE
SPRING HOOK
CATCHER MODEL SHOWN (ROPE START MOUNTED ON LEFT SIDE OF HANDLE)
UPPER KNOB
UPPER CLIP
2”
LOWER CLIP
LOWER KNOB
FIGURE 4.5
4.3 DRIVEN DISC SERVICE
If the mower does not propel itself properly, refer to Figure 4.6. Check for the following problems:
DRIVEN DISC &
POLY-V
SPRING
FIGURE 4.4
2. To adjust, unhook upper s pring from cable eye
and rotate spring in direction required to extend or shorten spring length.
3. Rehook upper spring to cable eye and check clearance. Repeat procedure if required.
NOTE: The vinyl spring cover should be kept over the spring at all times except for adjustments.
4. If the wheel dr ive control fails to return quick ly to the “OFF” position when released, check for binding at the cable holdings located on the side of the right handle. The upper clip should be loc ated 2” below the upper knob; the lower clip should be 4” above the lower knob. The cable should slide freely with the clips installed at these locations. See Figure 4.5.
DRIVE SPRING
ENGINE DRIVE BELT
DRIVE DISC
FIGURE 4.6
1. Grease on drive disc causing slippage.
2. Broken or disconnected drive spring.
3. Driven disc is out of adjustment.
4. Driven disc rubber ring is worn - does not contact
drive disc properly.
5. Worn Poly-V Belt or engine drive belt.
NOTE: If any of the above (1 thru 5) are causing
problems, service as follows:
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Section 4 - REPAIR & ADJUSTMENTS
SPRING
POSITION
SIXTH
POSITION
WARNING
Before attempting any adjustments o r repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug.
4.3.1. Cleaning Drive Disc & Driven Disc.
If oil or grease on the drive disc or driven disc is causing slippage, clean discs as follows:
1. Wipe away any oil or grease with a clean cloth.
2. Use either an approved grease solvent or hot,
soapy water to clean drive disc or driven disc.
3. Rinse components with clean water.
4. Dry components with a clean cloth.
4.3.2. Drive Spring Repair/Replacement
If drive spring is loose, reconnect as shown in Figure
4.7. If spring is broken, replace with new spring.
USE NEEDLE NOSE PLIERS TO INSTALL DRIVE SPRING
1. Place shift rod in the number six speed position.
See Figure 4.8.
MOVE GROUND SPEED CONTROL TO SIX SPEED POSITION
2. Remove driven disc spring from driven disc
assembly. Loosen connector hex nut. See Figure 4.9.
REYCLING MODEL SHOWN (ROPE START MOUNTED ON RIGHT SIDE OF HANDLE)
SIXTH SPEED
FIRST
FIRST SPEED
FIGURE 4.8
DRIVE
FIGURE 4.7
4.3.3. DRIVEN DISC ADJUSTMENT
If the drive disc and driven disc are clean and the mower drive is still slipping, adj ust the driven dis c as follows:
DRIVEN DISC SPRING
TRANSFER ROD
CONNECTOR
DRIVEN DISC ASSEMBLY
DRIVE DISC
CONNECTOR HEX NUT
FIGURE 4.9
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Section 4 - REPAIR & ADJUSTMENTS
EDGE
ROD
HEX NUT
ASSEMBLY
WARNING
Before attempting any adjustments or repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug.
3. Slide driven disc assembly over to 1/8” from outside
edge of drive disc. Maintaining the 1/8” measurem ent, remove any looseness from the linkage. This can be done by holding the transfer rod and applying pressure to the left (as viewed from operators position). Then retighten the connector hex nut secur ely. See Figure
4.10. Move ground speed control to the first speed position, then back to the sixth speed position. Recheck the 1/8” meas urement described previously. Reinstall driven disc spring to driven disc assembly.
1/8” MEASUREMENT TO OUTSIDE EDGE OF DRIVE DISC
SPEED CONTROL ROD
CONNECTOR CLIP
TRANSFER ROD
FIGURE 4.11
SLIDE DRIVEN DISC ASSEMBLY TOWARD OUTSIDE
TRANSFER
CONNECTOR
CONNECTOR
FIGURE 4.10
4.3.4. Replacing Driven Disc Rubber Ring
If the rubber r ing is badly chunked or worn down to within 1/16” of the metal rim of the driven disc hub, it must be replaced. Install new rubber ring as follows:
1. Using a small flat blade screwdriver, free the clip from the transf er rod. Then rem ove the transfer r od from the clip and the speed control rod. See Figure
4.11.
2. Using needle nose pliers, unhook the drive spring and slide the driven disc assembly off the hex shaft. See Figure 4.12.
3. Remove the five machine screws and plate which secure the rubber ring to the driven disc hub. See Figure 4.13.
4. Install new rubber ring.
5. Reverse above procedures for reassembly and
installation.
DRIVE DISC
DRIVE DISC
OUTSIDE EDGE
FIGURE 4.12
DRIVEN DISC HUB
MACHINE SCREWS
RUBBER RING
PLATE
FIGURE 4.13
14
Page 15
Section 4 - REPAIR & ADJUSTMENTS
BEARING
LOCK NUT
WHEEL BRACKET
ARM
DECK
WARNING
Before attempting any adjustments or repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug.
4.3.5. Replacing Bearing In Driven Disc
If the driven disc bearing fails, remove the driven disc assembly and replace bearing as follows:
1. Remove snap ring. See Figure 4.14.
THRUST PLATE
SHIM
WASHER SNAP RING
BALL BEARING
“O” RING
3/8”
REMOVE FOUR MACHINE SCREWS
DRIVEN DISC HUB
DRIVEN DISC PLATE
RUBBER DISC
FIGURE 4.14
2. Slide the hub assembly out of the bearing.
3. Remove the four screws.
4. Remove bearing and replace with new bearing.
5. Reassemble components in reverse order.
4.3.6. Replacement O f Bearing On Pulley End Of Hex Shaft
To replace the bearing on the pulley end of the hex shaft, proceed as follows:
1. Hold the hex shaft with an adjustable wrench held next to the pulley.
2. Remove the 3/8” hex lock nut which is located on the outside of the right wheel bracket. See Figure
4.15.
3. Remove holder, O-ring and bearing.
4. Install new bearing.
5. Carefully install new O-ring over the outside of the
new bearing.
6. Install bearing holder and secure with screws.
7. Install 3/8” hex lock nut.
4.4. BELT SERVICE
On self-propelled mowers, the engine belt transmits power from engine to drive disc. The drive disc powers the poly-v belt which engages the transmission that powers the rear wheels. Should these belts becom e worn, they could cause slippage which would impair mower perform ance. The condition of the engine belt and poly-v belt should be checked after every 25 hours of mower operation.
4.4.1. Engine Drive Belt Replacement
1. Empty the fuel tank.
2. Unhook the idler spring from the right rear wheel
bracket. See Figures 4.16.
RIGHT REAR
SLOT IN
15
BALL BEARING HOLDER
FIGURE 4.15
IDLER
ENGINE DRIVE PULLEY
TOP VIEW OF ENGINE BELT
FIGURE 4.16
IDLER SPRING
DRIVE DISC
DRIVE BELT
Page 16
Section 4 - REPAIR & ADJUSTMENTS
LOCKWASHER
SHOWN)
BRACKET
PULLEY
WARNING
Before attempting any adjustments o r repairs, STOP the engine, remove the spark plug wire from the spark plug and secure wire away from plug.
4.4.1. Engine Drive Belt Replacement
3. Remove the driven disc. Refer to Section on
“Replacing Driven Disc Rubber Ring” for driven disc removal procedure.
RIGHT WHEEL BRACKET
IDLER SPRING
DRIVE DISC
SLOT IN END OF DRIVE DISC BOLT
BUSHING
IDLER ARM
IDLER SPRING
DECK BRACKET (PARTIALLY
POSITION SCRAPER TO CLEAR “V” OF PULLEY
BOLT RETAINER
INTERNAL TOOTH
NUT
FIGURE 4.17
4. Do not tilt mower with spark plug or carburetor
down. Tilt mower up on its rear wheels and remove blade and blade hub. Assistance from another person may be necessary to hold mower in the tilted position.
5. Hold the slotted end of the drive disc bolt with a screwdriver and remove the nut and internal tooth lock washer. See Figure 4.17.
6. Lift the drive disc off the idler arm and remove worn belt.
7. Loop one end of new belt over engine pulley and insert the other end through slot in deck. See Figure
4.17.
8. Loop the belt around the pulley on the bottom of the drive disc.
9. Reinstall drive disc and retaining hardware.
10. Reinstall blade hub and cutter blade. Recom-
mended torque for blade cap screw is 30 to 40 ft. lbs.
11. Use a stiff wire, such as a coat hanger, with a hook fashioned on one end to pull the hooked end of the idler spring through the large hole in the right wheel bracket. See Figure 4.18.
12. Reinstall the driven disc assembly.
PULL SPRING THROUGH LARGE HOLE & HOOK INTO SMALL HOLE
FIGURE 4.18
4.4.2. Transmission Poly-V Belt Replacement
1. Remove the driven disc. Refer to Section on
“Replacing Driven Disc Rubber Ring” for procedure.
2. Note the routing of the old belt around the three pulleys before removing it. See Figure 4.19.
IDLER PULLEY
DRIVEN PULLEY
HEX SHAFT
BELT GUIDE
ROUTING OF POLY-V BELT
DIFFERENTIAL
POLY-V BELT
DRIVE
FIGURE 4.19
3. Place new Poly-V-Belt over end of hex shaft and
onto driven pulley.
4. Work belt onto top of idler pulley.
5. Twist belt sideways and pull it upward between
the differential bracket and drive pulley and then down into the pulley groove. Make sure the Poly-V­Belt is above belt guide. Refer to Figure 4.19.
16
Page 17
TROUBLESHOOTING
Mower Will Not Move
SNAPPER
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION
Engine Will Not Start 1. Fuel tank empty. 1. Fill fuel tank with fresh fuel.
Using Recoil Starter 2. Engine needs choking. 2. Move choke control to “CHOKE” position.
3. Spark plug wire disconnected. 3. Place spark plug wire onto spark plug.
Engine Stalls or Stops
After Running
2. Choke control in the “CHOKE” position. 2. Move choke control to “OFF” position.
3. Fuel tank empty. 3. Fill with fuel to proper level.
4. Engine air pre-cleaner and or air cleaner dirty. 4. Clean free of all debris.
5. Spark plug defective or gap set improperly. 5. Service spark plug.
6. Water, debris or stale fuel in fuel system. 6. Drain and clean fuel system.
Engine Loses Power 1. Engine air pre-cleaner or air cleaner dirty 1. Clean or replace filters.
2. Spark plug faulty. 2. Service spark plug.
3. Water, debris or stale fuel in fuel system. 3. Drain and clean fuel system.
Excessive Vibration 1. Damaged, out of balance or bent mower blade. 1. Service mower blade.
2. Loose blade components. 2. Service and tighten loose parts.
3. Loose or missing air lift (if equipped). 3. Replace air lifts. Tighten to proper torque.
4. Lumpy or frayed belt 4. Replace belt.
5. Bent Idler pulley 5. Replace pulley.
Loss Of Traction
(Self-Propelled Models)
Cutting Grass
Improperly
Poor Grass Discharge
Oil Leaking
1. Blade control is released or is not being held securely against handle.
1. Damaged transmission
2. Traction drive belt requires replacement 2. Replace traction drive belt.
3. Driven disc slipping 3. Clean or replace driven disc.
1. Cutting height too low or high. 1. Adjust cutting height.
2. Engine speed too slow. 2. Move engine speed control to “FAST” position.
3. Forward ground speed too fast. 3. Move ground speed control to a slower speed.
4. Terraced cut, side to side. 4. Adjust height of cut with height adjust levers.
5. Excessive deck pitch, front to rear. 5. Adjust height of cut with height adjust levers.
6. Cutting blade dull or damaged. 6. Sharpen cutting edges or replace blade.
1. Engine speed too slow. 1. Move engine speed control to “FAST” position.
2. Forward speed too fast. 2. Move ground speed control to a slower speed.
3. Grass is wet. 3. Mow when grass is dry.
4. Excessively worn or damaged blade. 4. Service mower blade.
5. Build up of grass clippings and debris under deck. 5. Clean deck.
6. Improper blade installed on deck.
7. Blade installed improperly on deck. 7. Install blades properly.
1. Leaking engine case.
1. Blade control should be held securely against handle at all times during operation of mower.
1. Contact authorized
6. Install proper SNAPPER blade.
1. Contact authorized SNAPPER dealer.
2. Check and tighten drain plug.
3. Make sure dip stick or oil filler cap is securely in place.
dealer.
17
Page 18
ITEM SERVICE PERFORMED
Engine Oil
Check Oil Level Page 9
SERVICE SCHEDULE
REF. EACH
USE 5 HRS
X
25
HRS
50
HRS
100
HRS
EACH
SEASON
Transmission
Grease
Air Pre-Cleaner
Air Cleaner Spark Plug
Engine Cooling
System
Mower Deck
Mower Blades
Driven Disc
Initial Oil Change Page 9 Periodic Oil Change Page 9
Check Grease Level Page 9
Periodic Grease Check Page 9 Clean Sponge Element Engine Manual. Clean or Replace Engine Manual. Replace Engine Manual. Clean Shroud & Fins Engine Manual
Clean Debris Accumulation Check For Wear, Damage & Replacement Check for Wear & Damage Disc Adjustment Page 13
Disc Replacement Page 14
Page 10 Page 11 Page 12
X X*
X X
X X** X** X X**
X
X
X
X
Drive Belts
* Change oil every 25 hours when operating under heavy load or high temperatures. **Clean more often under dusty conditions or when air debris is present
Bearing Replacement Page 15 Check For Wear And
Tension
Page 15-16
X X X
18
Page 19
3 YEAR LIMITED WARRANTY
For three (3) years from pur chase date f or the original pur chaser 's res idential, non-com m erc ial use, SNAPPER, through any authorized SNAPPER dealer will replace, free of charge (except for taxes where applic able), any part or parts found upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
For ninety (90) days from purchase date for the or iginal purchaser's commercial, rental, or other non-residential use, SNAPPER, through any authorized SNAPPER dealer will replace, free of charge, any part or parts found upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
All transportation costs incurred by the purchaser in submitting material to an authorized SNAPPER dealer for replacement under this warranty must be paid by the purchaser.
This warranty does not apply to engines and their components , and batteries, as these item s are warranted separately. This warranty does not apply to parts that have been damaged by accident, alteration, abuse, improper lubrication, normal wear, or other cause beyond the control of SNAPPER. This warranty does not cover any machine or com ponent part that has been altered or modified changing safety, performance, or durability.
Batteries have a one (1) year prorated warranty period with free replacement if requir ed during the first ninety (90) days from the original purchas e date. SNAPPER will not be responsible for any installation cost incurred. T he battery warranty only covers original equipment batteries and does not cover dam age to the battery or machine caused by neglect or abuse, destruction by fire, explosion, freezing, overcharging, improper maintenance, or use of improper electrolyte.
There is no other express warranty.
DISCLAIMER OF WARRANTY Implied warranties, including those of merchantability and fitness for a particular purpose, are limited to three (3) years from purchase date for the original purchaser's residential or other non-commercial use, and ninety (90) days from purchase for the original purchaser's commercial, rental or other non-residential use, and to the extent permitted by law, any and all implied warranties are excluded. This is the exclusive remedy. Liabilities for consequential damages, under any and all warranties are excluded.
Some states do not allow limitations on how long an implied warranty lasts, or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
WARNING: THE USE OF REPLACEMENT PARTS OTHER THAN GENUINE SNAPPER PARTS MAY IMPAIR THE SAFETY OF SNAPPER PRODUCTS AND WILL VOID ANY LIABILITY AND WARRANTY BY SNAPPER ASSOCIATED WITH THE USE OF SUCH PARTS.
IMPORTANT: Please fill out the attached SNAPPER Product Registration Card immediately and mail to:
Snapper’s Product Registration Ce nter, P.O. Box 1379, McDonough, Georgia 30253
19
Page 20
PRIMARY MAINTENANCE
An illustration of how
dirt can damage your
engine & how
reasonable maintenance
Snapper uses the
best available
engines and
components in
their products in
order to provide
long, satisfactory
service. However,
proper care is
essential in
prolonging engine
life. Dirt is your
engine’s enemy
The engine on your Snapper
product spends its entire life
operating close to the ground at
high speed creating a virtual
number 1!
can protect it!
storm of dust and dirt!
20
Page 21
PRIMARY MAINTENANCE
As the dirt particles are stopped, they build up
and begin to clog the outside of the air filter.
This reduces the amount of air available to the
rich fuel mixture
clogged
air cleaner will:
Damage caused by a poorly serviced air
cleaner is not covered under the engine
warranties. So, save yourself unnecessary
expenses and undue aggravation by keeping
the air cleaner properly serviced at the
intervals specified in the engine owner’s
t doesn’t take long to service an air cleaner.
Follow the specific instructions in the engine
owner’s manual for the type filter used.
Prevent dirt from falling into the carburetor
intake when servicing your air cleaner. Make
in correct
sequence after servicing to prevent unfiltered
air from entering the engine. Some servicing
Knowing the dirt will quickly ruin an engine, manufacturers equip their engine with extremely efficient air cleaners to filter out the harmful dirt.
The engine must gulp about 12,000 gallons of air for every gallon of fuel used. Because of its working environment, the air available to your Snapper engine is heavily saturated with airborne dirt particles.
engine and causes an over­which results in the following adverse effects:
An improperly serviced, dirt
1. Increase fuel
2. Cause power loss.
3. Result in hard
4. Create smoke from
5. Produce carbon
6. Foul spark plug
7. Score cylinder walls.
8. Burn valves.
9. Wear out the engine
10. COST YOU MONEY!
consumption.
starting.
unburned fuel.
build-up internally.
electrodes.
pre-maturely.
manual.
I
sure components are installed
hints on several common types are:
21
Page 22
PRIMARY MAINTENANCE
such as:
Air is also needed to keep your engine cool. Dirt, dust & debris build up restricts and clogs cooling air intake screens and fins. Clean screens and fins at frequent intervals. The engine blower housing and shrouds should be removed at least once each season or more often under dry, dusty conditions for a thorough cleaning of fins.
Generally, wash foam-type filters in a dishwashing detergent and water solution. Rinse and wring dry, then saturate with oil and squeeze out excess. Failure to re-oil this type filter will ruin the engine.
Clean paper elements by tapping lightly. Blowing with air will rupture paper elements.
Use a flashlight to detect clogged or torn paper elements – replace if damaged in any way.
Dirt can also be introduced into an engine in dirty fuel from a contaminated container. Always use clean fresh fuel from a clean container to guard against dirt, sludge and water contamination.
Failure to keep external surfaces clean not only presents fire hazards, but causes overheating and resulting engine damages
1. Distorted valve guides.
2. Sticking Valves.
3. Scuffed, scored cylinder walls.
4. Over-speeding.
5. Loss of power.
6. Complete failure of engine.
Be aware that fuel breaks down in storage and forms gummy compounds which will block carburetor passages. Never use fuel more than 3 months old. Drain tank then run the engine out of fuel before storing during the off-season.
An engine must also have proper lubrication. All engines use some oil. On 4-cycle engine, CHECK OIL LEVEL BEFORE EACH START-UP. Wipe area clean around the oil check plug or dipstick opening to keep dirt from falling into the engine when checking the oil. Always check with the machine on a level surface. On engines with dipstick, keep the level up to, but not over, the FULL mark. When adding oil, allow time for all of the oil to flow dow n the fill tube to prevent a false full reading when the level could actually be low and result in engine damage.
22
Page 23
point of overflowing at the
engine owner’s manual for oil details.
Read and follow all
safety instructions in
safety booklets and
Keep in mind that dirt is your engine’s
both internally and externally!
Internally, dirt will quickly ruin an engine
use overheating and
resulting internal damages. Damage caused
by improper lubrication, poor air cleaner
service or overheating due to dirt cannot be
covered under warranty.
e
(and equipment) on a routine basis but the rewards
will be a quick starting, responsive engine that will
provide long satisfactory service with minimum
start checklist in the next
’s
Manual are designated to help you keep your Snapper
On 4-cycle engines with an oil level plug, don’t be fooled onto thinking the engine has sufficient lubricating oil if you can see “some” oil in the opening – the level should always be brought up to the
top of the fill hole.
PRIMARY MAINTENANCE
On 2-cycle engines, lubrication must be provided by an exact mixture of gasoline and 2-cycle air-cooled engine oil. A 2-cycle engine that is mistakenly run on straight gasoline will be ruined in less than 5 minutes! If you keep straight gasoline in addition to pre-mixed 2-cycle engine fuel, be sure the containers are clearly marked to avoid mix-up. Snapper 2-cycle engines require a 32 to 1 mixture of gasoline and BIA certified TC-W oil such as Snapper’s 2-cycle engine oil. Many of the 2-cycle engine oils on the market today make fantastic claims, but for the best performance and long engine life, always use Snapper 2-cycle oil. Pre-mix the fuel and always shake the container before filling the tank.
Change oil at regular intervals using a high quality oil such as Snapper’s small engine formulated 4-cycle engine oil. Refer to the
1. Engine Oil To full level (4-cycle). Properly mixed with gas (2- cycle).
2. Air Cleaner Clean and properly serv iced. Full fresh clean gasoline.
3. Fuel Tank Fuel valve open. Cap vent open. Inline filter clean.
4. Choke Operating properly.
5. Primer (on Used properly.
some engines)
6. Safety Interlock In proper position.
Switches All wires properly connected.
7. Switch & Blade Switch On.
Control Blade control properly positioned on walk mower.
8. Spark Plug Wire connected.
Good connection.
9. Throttle Control Start Position.
10. Blade Properly installed and
torqued. Sharpened.
11. Muffler Good condition.
Not clogged.
Grass & leaves cleaned away.
manuals.
enemy #1
and externally it will ca
It only takes a few moments to service the engin
maintenance cost. The pre­column and instructions in your Snapper Operator
in top operating condition with minimum effort!
23
Page 24
SERVICE NOTES
___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________
24
Page 25
Safety Instructions & Operator’s Manual for
21” STEEL DECK WALK MOWERS SERIES 12
WARNING:
COPYRIGHT © 1999 SNAPPER INC. ALL RIGHTS RESERVED
The engine exhaust from this product cont ains chemicals known to the Stat e of California to cause cancer, birth defects or other reproductive harm.
MANUAL No. 3-5842 (REV. 2, 8/10/99)
25
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